US5641772A - Condensed diazepinones, processes for preparing them and agents containing these compounds for treating diseases of the central nervous system and for promoting cerebral blood circulation - Google Patents
Condensed diazepinones, processes for preparing them and agents containing these compounds for treating diseases of the central nervous system and for promoting cerebral blood circulation Download PDFInfo
- Publication number
- US5641772A US5641772A US08/421,108 US42110895A US5641772A US 5641772 A US5641772 A US 5641772A US 42110895 A US42110895 A US 42110895A US 5641772 A US5641772 A US 5641772A
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- US
- United States
- Prior art keywords
- dihydro
- acetyl
- piperidinyl
- pyrido
- benzodiazepin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 125000001973 tert-pentyl group Chemical group [H]C([H])([H])C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 150000003512 tertiary amines Chemical class 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 150000007970 thio esters Chemical class 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 210000003437 trachea Anatomy 0.000 description 1
- ILWRPSCZWQJDMK-UHFFFAOYSA-N triethylazanium;chloride Chemical compound Cl.CCN(CC)CC ILWRPSCZWQJDMK-UHFFFAOYSA-N 0.000 description 1
- 230000002792 vascular Effects 0.000 description 1
- 230000031836 visual learning Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D401/00—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom
- C07D401/02—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings
- C07D401/06—Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a six-membered ring with only one nitrogen atom containing two hetero rings linked by a carbon chain containing only aliphatic carbon atoms
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P25/00—Drugs for disorders of the nervous system
- A61P25/28—Drugs for disorders of the nervous system for treating neurodegenerative disorders of the central nervous system, e.g. nootropic agents, cognition enhancers, drugs for treating Alzheimer's disease or other forms of dementia
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/06—Antiarrhythmics
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D471/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00
- C07D471/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
- C07D471/04—Ortho-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D487/00—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00
- C07D487/02—Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, not provided for by groups C07D451/00 - C07D477/00 in which the condensed system contains two hetero rings
- C07D487/04—Ortho-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D495/00—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms
- C07D495/02—Heterocyclic compounds containing in the condensed system at least one hetero ring having sulfur atoms as the only ring hetero atoms in which the condensed system contains two hetero rings
- C07D495/04—Ortho-condensed systems
Definitions
- the invention relates to new condensed diazepinones, processes for preparing them and agents containing these compounds for treating diseases of the central nervous system and for promoting cerebral blood flow.
- EP-A-156191 U.S. Pat. No. 4,550,107
- EP-A-312895 describe how completely different pharmacological properties compared with the compounds of the above-mentioned publications, namely favourable effects on heart rate, can be induced by introducing alkylaminoacyl or dialkylaminoacyl groups.
- EP-A-213293, EP-A-254955, EP-A-273239, EP-A-306698, DE-A-3800986, DE-A-3802334, DE-A-3819444, DE-A-3820346 and DE-A-3820345 are also true.
- EP-A2-402734 describes condensed diazepinones as agents for treating diseases of the central nervous system and for promoting cerebral blood flow. These agents are suitable for use in geriatrics and for treating migraine. A number of the compounds described therein demonstrate good CNS-availability and can therefore be used for treating diseases of the central nervous system, particularly Alzheimer's disease.
- the "carboxamides" according to the invention also demonstrate a substantially better M 2 /M 1 -ratio, compared with the M 2 -selective antagonists described hitherto, i.e. the new compounds exhibit a substantially more favourable ratio of bonding affinity relative to M 2 -receptors than to M 1 -receptors.
- the compounds according to the invention can be used for treating bradycardia and bradyarrhythmia in human and veterinary medicine.
- the compounds are particularly suitable for use in geriatrics and for treating migraine.
- animal experiments on the rat they increase the learning capacity of old animals.
- the new condensed diazepinones according to the invention are highly lipophilic, in some cases, and therefore satisfy an essential prerequisite for good cerebro-availability. At the same time this high lipophilicity results in a rapid drop in the blood level, which means that there is no effect on heart rate.
- M 2 -selective antagonists which have a favourable CNS-penetration and at the same time have an M 2 /M 1 -selectivity are particularly suitable for treating diseases of the central nervous system, especially Alzheimer's disease.
- the condensed diazepinones according to the invention have the general formula I ##STR3## wherein B represents one of the divalent groups ##STR4## and X, l, m, n and R 1 to R 7 are defined as follows:
- X is a ⁇ CH-- group or, if B represents the divalent group (S), X may also represent a nitrogen atom;
- 1 is an integer 1, 2 or 3;
- n is an integer 1 or 2;
- n is an integer from 1 to 4.
- R 1 is a hydrogen atom or a straight-chained or branched C 1-6 alkyl group
- R 2 is a hydrogen atom, a straight-chained or branched C 1-8 salkyl group, a straight-chained or branched C 4-6 alkenyl group, a C 3-7 cycloalkyl group optionally substituted by a C 1-3 alkyl group, an adamantyl group, a phenyl group optionally substituted by one or two methyl or methoxy groups or by a halogen atom, or a phenylalkyl group having 1 to 3 carbon atoms in the alkylene moiety optionally substituted by a methyl or methoxy group or by a halogen atom at the aromatic group,
- R 3 and R 4 which may be identical or different, are hydrogen or halogen atoms or methyl, ethyl, methoxy or ethoxy groups;
- R 5 is a hydrogen or chlorine atom or a methyl group
- R 6 and R 7 which may be identical or different, represent hydrogen atoms or C 1-3 alkyl groups, but R 7 may additionally represent a halogen atom.
- Preferred compounds of general formula I above are those wherein
- X is a nitrogen atom
- B is the divalent group (S)
- n 1
- n the number 3 or 4
- R 1 is a straight-chained C 1-4 alkyl group
- R 2 is a branched C 4-6 alkyl group, a cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl, cycloheptyl, methylcyclopentyl, methylcyclohexyl, methylcycloheptyl or adamantyl group,
- R 3 and R 4 represent hydrogen atoms or one of these groups represents a methyl group or a halogen atom and the substituent --(CH 2 ) n --NR 1 --CO--R 2 is connected to the 4-position of the piperidinyl ring.
- Particularly preferred compounds are those wherein R 1 represents an ethyl group.
- branched alkyl or alkenyl groups include the 1-methyl-ethyl, 1,1-dimethyl-ethyl, 1,1-dimethyl-propyl, 1,1-dimethyl-butyl, 1,1,3-trimethyl-butyl, 1-ethyl-1-methyl-ethyl, 1-ethyl-1-methyl-propyl, 1-ethyl-1-methyl-butyl, 1-ethyl-1,3-dimethyl-butyl, 1-propyl-1-methyl-ethyl, 1-propyl-1-methyl-propyl, 1-propyl-1-methyl-butyl, 1-ethyl-ethyl, 1,1-diethyl-ethyl, 1,1-diethyl-propyl, 1,1-dimethyl-butyl and 1,1-dimethyl-but-3-enyl groups.
- the invention also relates to the acid addition salts with inorganic or organic acids, e.g. with hydrochloric acid, hydrobromic acid, sulphuric acid, fumaric acid, maleic acid, malic acid, citric acid, tartaric acid.
- inorganic or organic acids e.g. with hydrochloric acid, hydrobromic acid, sulphuric acid, fumaric acid, maleic acid, malic acid, citric acid, tartaric acid.
- Examples of reactive derivatives of a carboxylic acid general formula III include the esters thereof such as the methyl, ethyl or benzylester, the thioesters such as the methylthio or ethylthioester, the halides such as the acid chloride, the anhydrides and imidazolides thereof.
- reaction is conveniently carried out in a solvent such as methylene chloride, chloroform, carbon tetrachloride, ether, tetrahydrofuran, dioxane, benzene, toluene, acetonitrile or dimethylformamide, optionally in the presence of an acid activating agent or a dehydrating agent, e.g.
- reaction may also be carried out without a solvent and furthermore any water formed during the reaction may be separated off by azeotropic distillation, e.g. by heating with toluene using a water separator or by the addition of a drying agent such as magnesium sulphate or molecular sieve.
- azeotropic distillation e.g. by heating with toluene using a water separator or by the addition of a drying agent such as magnesium sulphate or molecular sieve.
- the reaction may be carried out with an acid halide in inert solvents such as ether, toluene, methylene chloride and the like, at temperatures between -50° C. and up to the boiling point of the reaction mixture, preferably between 0° C. and 50° C., and preferably in the presence of a hydrogen halide-binding agent, e.g. a tertiary amine, sodium carbonate or calcium carbonate.
- a hydrogen halide-binding agent e.g. a tertiary amine, sodium carbonate or calcium carbonate.
- the free amines of general formula II may be used but also the salts thereof from which the amines are liberated in situ by the auxiliary bases added.
- the reactions may, for example, be carried out in the presence of imidazolides or carbodiimides in a high boiling solvent such as xylene at reflux temperature.
- the reaction of the compounds of general formula IV with the acid derivatives of general formula V is carried out in a known manner.
- the leaving group Nu is a group which forms a reactive carboxylic acid derivative together with the carbonyl group to which it is bound.
- reactive carboxylic acid derivatives include acid halides, esters, anhydrides or mixed anhydrides such as are formed from salts of the corresponding acids (Nu ⁇ OH) and acid chlorides, such as phosphorus-oxychloride, diphosphoric acid tetrachloride or chloroformic acid esters or the N-alkyl-2-acyloxypyridinium salts formed when compounds of general formula V (Nu ⁇ OH) are reacted with N-alkyl-2-halopyridinium salts.
- the reaction is carried out with the mixed anhydrides of strong inorganic acids, particularly dichlorophosphoric acid.
- the reaction may optionally be carried out in the presence of an acid-binding agent (proton acceptor).
- suitable proton acceptors are alkali metal carbonates or hydrogen carbonates such as sodium carbonate or potassium hydrogen carbonate; tertiary organic amines such as pyridine, triethylamine, ethyl diisopropylamine, 4-(dimethylamino)pyridine or sodium hydride.
- the reaction is carried out at temperatures between -25° C. and 130° C. in an inert solvent.
- inert solvents include chlorinated aliphatic hydrocarbons such as methylene chloride, 1,2-dichloroethane; open-chained or cyclic ethers such as diethylether, tetrahydrofuran or 1,4-dioxane; aromatic hydrocarbons such as benzene, toluene, xylene, o-dichlorobenzene; polar aprotic solvents such as acetonitrile, dimethylformamide or hexamethyl-phosphoric acid triamide; or mixtures thereof.
- the reaction times range from 15 minutes to 80 hours, depending on the type and quantity of acylating agent of general formula V used. It is not necessary to prepare the compounds of general formula V in pure form; instead, they may be produced in situ in the reaction mixture in a known manner.
- the bases of general formula I thus obtained may subsequently be converted into the acid addition salts thereof or, if acid addition salts are obtained, they may be converted into the free bases or other pharmacologically acceptable acid addition salts.
- the new condensed diazepinones of general formula I according to the invention contain up to two independent chiral carbon atoms.
- the acylated tricyclic compound itself can be regarded as a further chiral element, which may occur in two mirror-symmetrical forms.
- the nature of the tricyclic compound determines whether the energy barrier for inversion at this centre is so high that the individual isomers are stable at room temperature and capable of being isolated. It has been found that, in compounds of general formula I wherein X is a nitrogen atom and the positions adjacent to the diazepinone ring are unsubstituted, the activating energy required is reduced to such an extent that diastereomers can no longer be detected, let alone preparatively isolated, at room temperature.
- the new condensed diazepinones of general formula I according to the invention thus contain up to three chiral elements, one of which is not structurally stable at ambient temperature under certain circumstances. Compounds of this kind may therefore occur in numerous diastereomeric forms and/or as enantiomeric (+)- and (-)-forms.
- the invention includes the individual isomers as well as the mixtures thereof. The diastereomers can be separated on the basis of their different physico-chemical properties, e.g. by fractional recrystallisation from suitable solvents, by high pressure liquid chromatography, column chromatography or gas chromatography.
- racemates of the compounds of general formula I may be cleaved by known methods, for example using an optically active acid such as (+)- or (-)-tartaric acid or a derivative thereof such as (+)- or (-)-diacetyltartaric acid, (+)- or (-)-monomethyltartrate or (+)-campborsulphonic acid.
- an optically active acid such as (+)- or (-)-tartaric acid or a derivative thereof such as (+)- or (-)-diacetyltartaric acid, (+)- or (-)-monomethyltartrate or (+)-campborsulphonic acid.
- the racemate of a compound of general formula I is reacted with one of the above-mentioned optically active acids in equimolar amounts in a solvent and the crystalline diastereomeric salts obtained are separated on the basis of their different solubilities.
- This reaction may be carried out in any kind of solvent provided that it shows a sufficiently great difference in the solubilities of the salts. It is preferable to use methanol, ethanol or mixtures thereof, e.g. in a ratio by volume of 50:50.
- each of the optically active salts is dissolved in water, neutralised with a base such as sodium carbonate or potassium carbonate and in this way the corresponding free compound is obtained in the (+)- or (-)-form.
- a starting compound of general formula II may be prepared as follows, for example:
- This amination is effected in an inert solvent at temperatures between -10° C. and the boiling temperature of the solvent, preferably either with at least 2 moles of secondary amine of general formula VIII or with 1 to 2 moles of the secondary amine of general formula VIII and an auxiliary base.
- solvents include chlorinated hydrocarbons such as methylene chloride, chloroform or dichloroethane; open-chained or cyclic ethers, such as diethylether, tetrahydrofuran or dioxane; aromatic hydrocarbons such as benzene, toluene, xylene, chlorobenzene or pyridine; alcohols such as ethanol or isopropanol; ketones such as acetone; acetonitrile, dimethylformamide or 1,3-dimethyl-2-imidazolidinone.
- chlorinated hydrocarbons such as methylene chloride, chloroform or dichloroethane
- open-chained or cyclic ethers such as diethylether, tetrahydrofuran or dioxane
- aromatic hydrocarbons such as benzene, toluene, xylene, chlorobenzene or pyridine
- alcohols such as ethanol or isopropano
- auxiliary bases include tertiary organic bases such as triethylamine, N-methylpiperidine, diethylaniline, pyridine and 4-(dimethylamino)pyridine or inorganic bases such as alkali metal or alkaline earth metal carbonates or hydrogen carbonates, hydroxides or oxides. If desired, the reaction may be accelerated by the addition of alkali metal iodides.
- the activated carboxylic acids of formula III are expediently obtained in the reaction mixture by methods known from the literature.
- the diazepinones of general formula IV are known from the literature (cf. EP-A-39519; EP-A-57428; DE-C-1179943 and 1204680; F. Hunzicker et al., Arzneim.-Forsch. 13:324 (1965)).
- the carboxylic acid derivatives of general formula V wherein Nu represents an alkoxy group are obtained by reacting substituted piperidines of general formula VIII with corresponding haloalkanoic acid esters, optionally using additional auxiliary bases, e.g. triethylamine, or catalysts, e.g. Triton B. By saponifying the resulting esters, e.g. using barium hydroxide solution, the carboxylic acids of general formula V wherein Nu represents a hydroxy group are obtained. The carboxylic acids obtained in this way then serve as starting substances for preparing derivatives with other nucleofugic groups, e.g. the acid halides of formula V.
- the invention further relates to pharmaceutical compositions which contain one or more condensed diazepinones of general formula I or the physiologically acceptable salts thereof.
- the compounds of general formula I may be incorporated in conventional pharmaceutical preparations in known manner, e.g. in solutions, suppositories, plain or coated tablets, capsules or infusions.
- the daily dose is generally between 0.02 and 5 mg/kg, preferably between 0.02 and 2.5 mg/kg, more particularly 0.05 and 1.0 mg/kg of body weight, administered optionally in the form of several, preferably 1 to 3, single doses, in order to achieve the desired results.
- the base-substituted condensed diazepinones of general formula I and the acid addition salts thereof have valuable properties; thus, they have favourable selectivity for cardiac M 2 -receptors and can therefore be used as vagal pacemakers for treating bradycardia and bradyarrhythmia in both human and veterinary medicine.
- Inhibition of the muscarinic receptors detectable in the cerebral blood vessels thus results in a prevention of constriction and an improvement or normalisation of the arteriosclerotically-induced disorders of cerebral blood flow.
- the new compounds according to the invention are particularly suitable for improving or normalising arteriosclerotically induced disorders of cerebral blood flow.
- a number of compounds of general formula I exhibit good CNS-availability, owing to their high lipophilicity, and are therefore additionally suitable for the treatment of diseases of the central nervous system, particularly Alzheimer's disease.
- senile dementia of the Alzheimer's type the degeneration of cholinergic neurones, particularly in hippocampal and cortical projections, leads to a reduced release of the neurotransmitter acetylcholine.
- the blockade of the presynaptic autoreceptors then interrupts the negative feedback mechanism which the neurotransmitter exerts on the still intact neurones and thereby brings about an increased release of acetylcholine and, consequently, stimulation of the post-synaptic receptors (D. C. Mash, D. L.
- mice Male Wistar rats (Chbb: THOM strain, 180-220 g body weight) were killed by a blow to the back of the neck.
- the cerebral cortex, heart and salivary glands were removed, washed and homogenised in a 20-fold volume of HEPES-buffer (20 mM 4-(2-hydroxyethyl)-1-piperazino-ethanesulphonic acid, 100 mM sodium chloride, 10 mM magnesium chloride, pH 7.5) using an Ultra-Turrax apparatus at a maximum speed of rotation of 60 s.
- the homogenised matter was diluted to 1:500, based on the original quantity of tissue.
- Arecoline has both a central and a peripherally active component.
- the peripheral (hypotensive) effects are blocked by N-methylscopolamine so that only the central (hypertensive) effect of arecoline occurs. Cerebroavailable antimuscarinics block this central effect.
- Male rats weighing 300 g are anaesthetised i.p. with urethane (1.2 g/kg).
- the trachea is incubated, the animals are respirated with an air/oxygen mixture (80 breaths per minute).
- the blood pressure is recorded after canulation of the carotid artery by means of a pressure recorder (Bell and Howell Type 4-327-I).
- the test substances are administered through the jugular vein (0.5 mol/kg). Before the start of the trial the animals are given 0.5 mg/kg of N-methyl-scopolamine.
- the arecoline is administered (in doses of 0.3 mg/kg) at 15 minute intervals. After 2 comparison values, the test substance is injected in increasing doses 5 minutes before the next administration of arecoline.
- the specified compounds A to G exhibit excellent M 1 /M 2 -selectivity in the range from 10-35.
- This ratio demonstrates that the compounds specified are highly M 2 -selective and are therefore capable of blocking presynaptic M 2 -receptors in the brain, at a dosage at which M 1 -receptors are unaffected.
- the comparison substances H to S show only moderately marked M 1 /M 2 -selectivities with a selectivity ratio ⁇ 6.6. A comparison of these selectivity values shows that the new diazepinones of general formula I are far superior to the comparison substances.
- the precipitated triethylamine hydrochloride is filtered off and the filtrate is evaporated to dryness using a rotary evaporator in a water jet vacuum.
- the residue is dissolved in ethyl acetate.
- the ethyl acetate solution is extracted twice with 10% hydrochloric acid, the organic phase is separated off and the aqueous phase is made alkaline by the addition of concentrated ammonia. Then the aqueous phase is extracted twice with ethyl acetate.
- the organic phase is dried over sodium sulphate and evaporated to dryness in vacuo.
- the residue obtained is crystallised by digesting it in ethyl acetate. Colourless crystals are obtained of m.p. 136°-138° C.
- Example 2 Prepared analogously to Example 1 from 5,11-dihydro-11-[[4-[3-(ethylamino)propyl]-1-piperidinyl]acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and benzoic acid chloride.
- the free base is dissolved in ethyl acetate and the dihydrochloride is precipitated by the addition of ethereal hydrochloric acid.
- the desired compound is obtained in a yield of 62% by recrystallisation from ethanol.
- Example 2 Prepared analogously to Example 1 from 5,11-dihydro-11-[[4-[3-(ethylamino)propyl]-1-piperidinyl]acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and 4-methoxybenzoic acid chloride.
- the free base is dissolved in ethyl acetate and the dihydrochloride is precipitated by the addition of ethereal hydrochloric acid.
- the desired compound is obtained in a yield of 81% by recrystallisation from ethanol.
- Example 2 Prepared analogously to Example 1 from 5,11-dihydro-11-[[4-[3-(ethylamino)propyl]-1-piperidinyl]acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and 3,4-dimethoxybenzoic acid chloride.
- the free base is dissolved in ethyl acetate and the dihydrochloride is precipitated by the addition of ethereal hydrochloric acid.
- Example 2 Prepared analogously to Example 1 from 5,11-dihydro-11-[[4-[3-(ethylamino)propyl]-1-piperidinyl]acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and phenylacetyl chloride.
- the free base is purified by chromatography on silica gel (Merck, 30-60 ⁇ m) using a mixture of ethyl acetate/methanol (98:2) as eluant and is then converted into the dihydrochloride by treating with ethereal hydrochloric acid.
- Example 2 Prepared analogously to Example 1 from 5,11-dihydro-9-chloro-11-[[4-[3-(ethylamino)propyl]-1-piperidinyl]-acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and 2,2-dimethylvaleric acid chloride. Purification was carried out by chromatography on silica gel (Merck 30-60 ⁇ m) using a mixture of ethyl acetate/ammonia (10:0.1) as eluant.
- Example 2 Prepared analogously to Example 1 from 5,11-dihydro-8-methyl-11-[[4-[3-(ethylamino)propyl]-1-piperidinyl]-acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and 2,2-dimethylbutyric acid chloride. Purification was carried out by chromatography on silica gel (Baker, 30-60 ⁇ m) using a mixture of ethyl acetate/ammonia (10:0.1) as eluant.
- Example 2 Prepared analogously to Example 1 from 5,11-dihydro-8-methyl-11-[[4-[3-(ethylamino)propyl]-1-piperidinyl]-acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and 2,2-dimethylvaleric acid chloride. Purification by chromatography on silica gel (Baker, 30-60 ⁇ m) using a mixture of ethyl acetate/ammonia (10:0.1) as eluant.
- Example 21 Prepared analogously to Example 1 from 5,11-dihydro-8-chloro-11-[[4-[3-(ethylamino)propyl]-1-piperidinyl]acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and butyric acid chloride. Purification by chromatography on silica gel analogously to Example 21.
- Example 2 Prepared analogously to Example 1 from 5,11-dihydro-8-chloro-11-[[4-[3-(ethylamino)propyl]-1-piperidinyl]-acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and propionic acid chloride. Purification by chromatography on silica gel analogously to Example 21.
- Example 21 Prepared analogously to Example 1 from 5,11-dihydro-11-[[4-[3-(ethylamino)propyl]-1-piperidinyl]acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and propionic acid chloride. Purification by chromatography on silica gel analogously to Example 21.
- Example 21 Prepared analogously to Example 1 from 5,11-dihydro-11-[[4-[3-(ethylamino)propyl]-1-piperidinyl]acetyl]-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one and butyric acid chloride. Purification by chromatography on silica gel analogously to Example 21.
- Example 21 Prepared analogously to Example 1 from 5,11-dihydro-11-[[4-[3-(ethylamino) propyl ]-1-piperidinyl ]acetyl ]-6H-pyrido [2,3-b][1,4]benzodiazepin-6-one and valeric acid chloride. Purification by chromatography on silica gel analogously to Example 21.
- reaction mixture is poured into a saturated sodium chloride solution, the organic phase is separated off and evaporated to dryness in vacuo.
- the residue obtained is distributed between water and ethyl acetate and the ethyl acetate phase is then evaporated down in vacuo.
- the crude product obtained is purified on silica gel (Baker, 30-60 ⁇ m) by chromatography using a mixture consisting of ethyl acetate/methanol/ammonia (9:1:0.1).
- the desired compound is obtained as an amorphous product in a yield of 130 mg (11% of theory).
- Example 8 Prepared analogously to Example 8 from 11-(chloroacetyl)-5,11-dihydro-6H-pyrido[2,3-b][1,4]-benzodiazepin-6-one and 3-[3-[(acetyl)methylamino]-propyl]piperidine. Purification is carried out by chromatography on silica gel (Baker) using methylene chloride to which increasing amounts of methanol are added.
- a 10% mucilage is prepared from potato starch by heating.
- the active substance, lactose and the remaining potato starch are mixed together and granulated with the above mucilage through a 1.5 mm mesh screen.
- the granules are dried at 45° C., rubbed through the same screen again, mixed with magnesium stearate and compressed to form tablets.
- the tablets prepared according to Example I are coated, by a known method, with a coating consisting essentially of sugar and talc.
- the finished coated tablets are polished with beeswax.
- Weight of coated tablet 300 mg
- the active substance and sodium chloride are dissolved in distilled water and then made up to the volume specified.
- the solution is sterile filtered and transferred into 1 ml ampoules. Sterilisation: 20 minutes at 120° C.
- the finely powdered active substance is suspended in the molten suppository mass which has been cooled to 40° C.
- the mass is poured at 37° C. into slightly chilled suppository moulds.
- the active substance and sodium cyclamate are dissolved in about 70 ml of water and glycerol is added.
- the p-hydroxybenzoates, aniseed oil and menthol are dissolved in ethanol and this solution is added with stirring to the aqueous solution. Finally, the solution is made up to 100 ml with water and filtered to remove any suspended particles.
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US08/421,108 US5641772A (en) | 1991-04-12 | 1995-04-13 | Condensed diazepinones, processes for preparing them and agents containing these compounds for treating diseases of the central nervous system and for promoting cerebral blood circulation |
US08/457,061 US5610155A (en) | 1992-04-09 | 1995-06-01 | Condensed diazepinones, processes for preparing them and agents containing these compounds for treating diseases of the central nervous system and for promoting cerebral blood circulation |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4112014A DE4112014A1 (de) | 1991-04-12 | 1991-04-12 | Kondensierte diazepinone, verfahren zu ihrer herstellung und diese verbindungen enthaltende mittel zur behandlung von erkrankungen des zentralnervensystems und zur foerderung der cerebralen durchblutung |
DE4112014.0 | 1991-04-12 | ||
US86557592A | 1992-04-09 | 1992-04-09 | |
US13433293A | 1993-10-12 | 1993-10-12 | |
US28757494A | 1994-08-09 | 1994-08-09 | |
US08/421,108 US5641772A (en) | 1991-04-12 | 1995-04-13 | Condensed diazepinones, processes for preparing them and agents containing these compounds for treating diseases of the central nervous system and for promoting cerebral blood circulation |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US28757494A Continuation | 1991-04-12 | 1994-08-09 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/457,061 Division US5610155A (en) | 1992-04-09 | 1995-06-01 | Condensed diazepinones, processes for preparing them and agents containing these compounds for treating diseases of the central nervous system and for promoting cerebral blood circulation |
Publications (1)
Publication Number | Publication Date |
---|---|
US5641772A true US5641772A (en) | 1997-06-24 |
Family
ID=6429483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US08/421,108 Expired - Fee Related US5641772A (en) | 1991-04-12 | 1995-04-13 | Condensed diazepinones, processes for preparing them and agents containing these compounds for treating diseases of the central nervous system and for promoting cerebral blood circulation |
Country Status (28)
Country | Link |
---|---|
US (1) | US5641772A (de) |
EP (1) | EP0508370B1 (de) |
JP (1) | JPH0597845A (de) |
KR (1) | KR100196969B1 (de) |
AT (1) | ATE140004T1 (de) |
AU (1) | AU653802B2 (de) |
CA (1) | CA2065800A1 (de) |
CZ (1) | CZ283399B6 (de) |
DE (2) | DE4112014A1 (de) |
DK (1) | DK0508370T3 (de) |
ES (1) | ES2090396T3 (de) |
FI (1) | FI97470C (de) |
GR (1) | GR3020860T3 (de) |
HR (1) | HRP940753A2 (de) |
HU (2) | HUT61301A (de) |
IE (1) | IE921147A1 (de) |
IL (1) | IL101560A (de) |
MX (1) | MX9201675A (de) |
NO (1) | NO180303C (de) |
NZ (1) | NZ242305A (de) |
PL (1) | PL169745B1 (de) |
RU (1) | RU2081870C1 (de) |
SG (1) | SG48793A1 (de) |
SI (1) | SI9210325A (de) |
SK (1) | SK279466B6 (de) |
TW (1) | TW205551B (de) |
YU (1) | YU48645B (de) |
ZA (1) | ZA922617B (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070105835A1 (en) * | 2005-11-07 | 2007-05-10 | Kazantsev Aleksey G | Compositions and methods for modulating poly(ADP-ribose) polymerase activity |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4332168A1 (de) * | 1993-02-22 | 1995-03-23 | Thomae Gmbh Dr K | Cyclische Derivate, diese Verbindungen enthaltende Arzneimittel und Verfahren zu ihrer Herstellung |
WO1994022861A1 (en) * | 1993-04-05 | 1994-10-13 | Pharmaceutical Discovery Corporation | PYRIDO[2,3-b][1,4]BENZODIAZEPINONES AS M2 RECEPTOR LIGAND FOR THE TREATMENT OF NEUROLOGICAL DISORDERS |
WO1996013488A1 (fr) * | 1994-10-31 | 1996-05-09 | Yamanouchi Pharmaceutical Co., Ltd. | Nouveau derive de benzodiazepinone et composition medicinale constituee de celui-ci |
US20100247688A1 (en) * | 2007-07-02 | 2010-09-30 | Andrea Pfeifer | Pirenzepine and derivatives thereof as anti-amyloid agents |
KR102478480B1 (ko) | 2021-11-17 | 2022-12-19 | 주식회사 지농 | 통신 데이터 사용량을 최소화한 스마트팜 제어 및 동작확인 장치 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4550107A (en) * | 1984-03-14 | 1985-10-29 | Dr. Karl Thomae Gmbh | Condensed diazepinones, their compositions and methods of use as pharmaceuticals |
EP0312895A2 (de) * | 1987-10-23 | 1989-04-26 | Dr. Karl Thomae GmbH | Kondensierte Diazepinone, Verfahren zu ihrer Herstellung und diese Verbindungen enthaltende Arzneimittel |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3919076A1 (de) * | 1989-06-10 | 1990-12-13 | Thomae Gmbh Dr K | Mittel zur behandlung von erkrankungen des zentralnervensystems und zur foerderung der cerebralen durchblutung |
-
1991
- 1991-04-12 DE DE4112014A patent/DE4112014A1/de not_active Withdrawn
-
1992
- 1992-03-30 YU YU32592A patent/YU48645B/sh unknown
- 1992-03-30 SI SI9210325A patent/SI9210325A/sl unknown
- 1992-04-07 DE DE59206679T patent/DE59206679D1/de not_active Expired - Fee Related
- 1992-04-07 SG SG1996001728A patent/SG48793A1/en unknown
- 1992-04-07 DK DK92105989.5T patent/DK0508370T3/da active
- 1992-04-07 AT AT92105989T patent/ATE140004T1/de not_active IP Right Cessation
- 1992-04-07 ES ES92105989T patent/ES2090396T3/es not_active Expired - Lifetime
- 1992-04-07 EP EP92105989A patent/EP0508370B1/de not_active Expired - Lifetime
- 1992-04-09 TW TW081102753A patent/TW205551B/zh active
- 1992-04-10 MX MX9201675A patent/MX9201675A/es not_active IP Right Cessation
- 1992-04-10 FI FI921589A patent/FI97470C/fi active
- 1992-04-10 NO NO921447A patent/NO180303C/no unknown
- 1992-04-10 HU HU9201247A patent/HUT61301A/hu unknown
- 1992-04-10 CA CA002065800A patent/CA2065800A1/en not_active Abandoned
- 1992-04-10 NZ NZ242305A patent/NZ242305A/en unknown
- 1992-04-10 IE IE114792A patent/IE921147A1/en not_active Application Discontinuation
- 1992-04-10 RU SU925011249A patent/RU2081870C1/ru active
- 1992-04-10 IL IL10156092A patent/IL101560A/en not_active IP Right Cessation
- 1992-04-10 ZA ZA922617A patent/ZA922617B/xx unknown
- 1992-04-10 PL PL92294184A patent/PL169745B1/pl unknown
- 1992-04-10 AU AU14814/92A patent/AU653802B2/en not_active Ceased
- 1992-04-10 JP JP4089174A patent/JPH0597845A/ja active Pending
- 1992-04-11 KR KR1019920006036A patent/KR100196969B1/ko not_active IP Right Cessation
- 1992-04-13 CZ CS921111A patent/CZ283399B6/cs not_active IP Right Cessation
- 1992-04-13 SK SK1111-92A patent/SK279466B6/sk unknown
-
1994
- 1994-10-25 HR HRP-325/92A patent/HRP940753A2/hr not_active Application Discontinuation
-
1995
- 1995-04-13 US US08/421,108 patent/US5641772A/en not_active Expired - Fee Related
- 1995-06-02 HU HU95P/P00158P patent/HU211156A9/hu unknown
-
1996
- 1996-08-22 GR GR960402217T patent/GR3020860T3/el unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4550107A (en) * | 1984-03-14 | 1985-10-29 | Dr. Karl Thomae Gmbh | Condensed diazepinones, their compositions and methods of use as pharmaceuticals |
EP0312895A2 (de) * | 1987-10-23 | 1989-04-26 | Dr. Karl Thomae GmbH | Kondensierte Diazepinone, Verfahren zu ihrer Herstellung und diese Verbindungen enthaltende Arzneimittel |
DE3735895A1 (de) * | 1987-10-23 | 1989-05-03 | Thomae Gmbh Dr K | Kondensierte diazepinone, verfahren zu ihrer herstellung und diese verbindungen enthaltende arzneimittel |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070105835A1 (en) * | 2005-11-07 | 2007-05-10 | Kazantsev Aleksey G | Compositions and methods for modulating poly(ADP-ribose) polymerase activity |
US20100069372A1 (en) * | 2005-11-07 | 2010-03-18 | The General Hospital Corporation | Compositions and methods for modulating poly(adp-ribose) polymerase activity |
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